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Renesas R5F102A8GSP#30
- Part No.:
- R5F102A8GSP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F102A8GSP#30.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,467
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Product details
Overview
R5F102A8GSP#30 from Renesas Electronics is a 30-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller designed for industrial temperature-grade embedded control. It integrates 8 KB code flash, 2 KB data flash, 2 KB RAM, 8-channel 10-bit A/D converter, 8-channel TAU timer, and dual UART/CSI/I²C serial interfaces - all operating from 1.8 V to 5.5 V at −40°C to +105°C for HVAC sensor nodes and motor drive supervision.
For engineers reviewing the R5F102A8GSP#30 datasheet, R5F102A8GSP#30 pinout, R5F102A8GSP#30 application, or R5F102A8GSP#30 equivalent, key selection criteria include its G-grade industrial temp rating, on-chip 2 KB data flash with 1M rewrite cycles, 2-channel DMA, CRC engine, and 30-pin LSSOP package with REGC voltage regulator capacitor support.
Technical Context
The R5F102A8GSP#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and configurable instruction timing (0.04167 µs min @ 24 MHz). Its power management includes HALT, STOP, and SNOOZE modes enabling 63 µA/MHz active current draw.
It features a high-accuracy ±1.0% (−20°C to +85°C) high-speed on-chip oscillator (1–24 MHz), dedicated low-speed 15 kHz watchdog clock, and hardware BCD correction - all validated for G-grade operation up to +105°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Flash Memory | 8 KB code flash + 2 KB data flash (1M rewrite cycles, background operation) |
| RAM | 2 KB on-chip RAM with RAM guard safety feature |
| Operating Temp | −40°C to +105°C (G-grade industrial qualification) |
| Supply Voltage | 1.8 V to 5.5 V single supply, supports 1.8/2.5/3.3 V I/O interfacing |
| A/D Converter | 10-bit resolution, 8 input channels, internal 1.45 V reference, integrated temperature sensor |
| Timers | 8-channel 16-bit TAU timer, 12-bit interval timer, windowed watchdog timer |
| Serial Interfaces | UART ×2, CSI (SPI-like) ×2, I²C ×2 - all with peripheral I/O redirection |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), RoHS-compliant, thermal pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial Clock I/O | Primary CSI0 or I²C0 clock; assignable via PIOR register |
| P11/SI00/RxD0/SDA00 | Serial Data Input / UART RX | CSI0 data in, UART0 receive, I²C0 data - multiplexed with tool interface |
| P12/SO00/TxD0/TOOLTxD | Serial Data Output / UART TX | CSI0 data out, UART0 transmit, tool debug output |
| P13/TxD2/SO20/SDAA0 | Secondary UART TX / CSI2 / I²C0 data | Enables UART2, CSI20, or SDAA0 function depending on PIOR configuration |
| P14/RxD2/SI20/SDA20 | Secondary UART RX / CSI2 / I²C2 data | Supports full-duplex UART2 or dual I²C bus operation |
| P31/TI03/TO03/INTP4/PCLBUZ0 | Timer I/O / Interrupt / Buzzer | Configurable as PWM output, external interrupt, or programmable clock/buzzer source |
| REGC | Voltage Regulator Capacitor | Must connect 0.47–1 µF capacitor to VSS for internal regulator stability |
| RESET | Active-low Reset Input | Asynchronous reset pin with internal pull-up; accepts 1.8–5.5 V logic levels |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 63 µA/MHz active current enables battery-powered industrial sensors with multi-year runtime |
| On-chip data flash | 2 KB EEPROM-like nonvolatile storage with background rewriting and 1M endurance |
| CRC and memory protection | Dedicated CRC calculation unit plus RAM/SFR guard prevents firmware corruption in noisy environments |
| Peripheral I/O redirection | PIOR register enables dynamic remapping of UART/CSI/I²C functions to alternate pins without PCB change |
| G-grade temperature support | Full functionality guaranteed from −40°C to +105°C - qualified for under-hood and factory-floor applications |
| Hardware BCD correction | Accelerates decimal arithmetic for display drivers and metering firmware without software overhead |
Applications
| Industrial Motor Supervision | Smart HVAC Sensor Node |
|---|---|
Use Scenario: Real-time monitoring of brushless DC motor phase currents, temperature, and fault status in variable-frequency drives. IC Role / Device Role / Timing Role: Main system controller executing closed-loop control, ADC sampling at 100 kS/s, and UART-based communication with host PLC. Use Value: On-chip 2 KB data flash stores calibration coefficients and fault logs; 8-channel TAU timers generate precise PWM gate signals with dead-time insertion. | Use Scenario: Battery-powered wireless thermostat with local display, ambient/duct temperature sensing, and Zigbee/Bluetooth co-processor interface. IC Role / Device Role / Timing Role: Primary MCU managing 8-channel A/D conversion, buzzer alerts, I²C display driver, and UART bridge to radio module. Use Value: 63 µA/MHz active current extends CR2032 battery life beyond 3 years; G-grade rating ensures reliability in attic-mounted enclosures. |
| Programmable Power Supply Controller | Factory Automation I/O Module |
Use Scenario: Digital control of isolated DC-DC converters with voltage/current regulation, overtemperature shutdown, and digital communication. IC Role / Device Role / Timing Role: Embedded controller performing PID loop execution, 10-bit ADC feedback sampling, and SMBus-compatible interface. Use Value: Hardware multiplier/accumulator accelerates real-time control math; REGC-stabilized internal regulator simplifies power design. | Use Scenario: DIN-rail mounted remote I/O terminal aggregating 16 digital inputs, 8 relay outputs, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Central processor handling GPIO scanning, UART-to-Modbus protocol translation, and watchdog supervision. Use Value: Dual UARTs enable simultaneous host communication and diagnostics port; CRC engine validates firmware updates over fieldbus. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102A9GSP#30 | 16 KB code flash, same 2 KB data flash, identical pinout and peripherals | Required where larger firmware image size exceeds 8 KB capacity | Select when bootloader, OTA update partition, or complex protocol stacks demand >8 KB code space |
| R5F103A8GSP#30 | No data flash; lacks DMA, CRC, RAM/SFR guard; same 8 KB flash, 512 B RAM, G-grade temp | Suitable for cost-sensitive, non-data-logging applications with simpler safety requirements | Choose only if data retention, background flash writes, or functional safety features are unnecessary |
Compared with R5F102A9GSP#30, the R5F102A8GSP#30 trades 8 KB flash capacity for lower cost and smaller footprint while retaining all safety and data logging features; versus R5F103A8GSP#30, it adds critical industrial-grade reliability functions - data flash, DMA, and memory guards - at modest BOM cost increase.
Availability
R5F102A8GSP#30 is available at Aetrix Electronics and suitable for industrial motor control, smart HVAC systems, and programmable power supply designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F102A8GSP#30 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer control applications requiring robust analog integration, data logging, and extended temperature operation.
FAQ
What is the maximum operating frequency and accuracy of the on-chip oscillator in R5F102A8GSP#30?
The R5F102A8GSP#30 features a high-speed on-chip oscillator rated for 1–24 MHz operation with ±1.0% accuracy over −20°C to +85°C and ±2.0% over −40°C to +105°C. This eliminates external crystal cost while maintaining timing integrity for UART baud rates and PWM generation in industrial environments.
Does R5F102A8GSP#30 support background data flash rewriting during program execution?
Yes, the R5F102A8GSP#30 supports background operation (BGO) for its 2 KB data flash memory: instructions execute from code flash while data flash is being rewritten, enabling seamless firmware parameter updates or sensor calibration storage without halting real-time control tasks.
How many UART interfaces does R5F102A8GSP#30 provide, and are they independently configurable?
The R5F102A8GSP#30 provides two independent UART interfaces (UART0 and UART2), each with dedicated TX/RX pins and full baud rate generator control. They can operate simultaneously - e.g., UART0 for host communication and UART2 for diagnostic logging - with no resource conflict due to separate peripheral modules.
What safety features are implemented in R5F102A8GSP#30 for industrial applications?
The R5F102A8GSP#30 includes CRC calculation hardware, RAM guard, and SFR guard - all verified for G-grade operation. These features detect memory corruption and prevent unintended register writes, satisfying basic functional safety requirements for IEC 61508 SIL-2 subsystems without external monitoring circuitry.
Is the REGC pin mandatory for R5F102A8GSP#30 operation, and what capacitor value is required?
Yes, the REGC pin is mandatory: it must be connected to VSS via a 0.47 µF to 1 µF ceramic capacitor to stabilize the internal voltage regulator. Omitting this capacitor causes unstable operation or failure to boot, per Renesas datasheet Section 1.4.3 and Absolute Maximum Ratings Table.
R5F102A8GSP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G12
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 23
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 768 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F102A8GSP#30 FAQ
1.How can I place an order for R5F102A8GSP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F102A8GSP#30 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F102A8GSP#30 reliable?
The price and inventory of R5F102A8GSP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F102A8GSP#30 is usually 5 days.
3.What payment methods are accepted for R5F102A8GSP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F102A8GSP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F102A8GSP#30?
R5F102A8GSP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F102A8GSP#30 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F102A8GSP#30?
For technical support, including R5F102A8GSP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F102A8GSP#30 requirements.
6.How does Aetrix verify that R5F102A8GSP#30 is sourced from the original manufacturer or authorized distributors?
All R5F102A8GSP#30 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F102A8GSP#30 meets industry standards.
7.What is the process for return or replacement of R5F102A8GSP#30?
All R5F102A8GSP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F102A8GSP#30, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F102A8GSP#30 part is unused and in its original packaging.
Return procedure for R5F102A8GSP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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